| Title |
The Reduction Rates of Metal Oxides Contained in Electric Arc Furnace Dust by Solid Carbon depending on Basicity |
| Authors |
박병구(Byung Ku Park) ; 이광학(Kwang Hak Lee) ; 김영홍(Young Hong Kim) ; 신형기(Hyoung Ky Shin) |
| Abstract |
The metal oxides contained in electric arc furnace(EAF) dust are reduced by solid carbon at the various temperatures and basicities to investigate their effects on the reduction reaction and rate. A thermogravimetric analysis(TGA) was also carried out for franklinite to show that the zinc oxides could effectively be reduced and evaporated completely at the temperatures above 1100℃. The X-Ray diffraction study of reduced EAF dust revealed that the slag was a mixtures of Merwinite[Ca₃Mg(SiO₄)₂]. apparentely crystallized first and Akermanite [Ca₂MgSiO_7] as the second crystallization product. The reaction rate constants evaluated for zinc removal reaction and also the reduction reaction of metal oxides are found to be expressed as a classical Arrhenius type relation with the temperature. |